Blackmagicdesign Design 3G-SDI Arduino Shield, Инструкция по установке и эксплуатации, Страница: 154 / 253

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安装盾板元件
安装盾板元件
如果您想要构建自己的硬件控制器，就需要重新制作一个含有按钮、旋钮和操纵杆的盾板，获得更
为精细的手控。只要将自定义盾板插入
Blackmagic 3G-SDI Arduino Shield
的连接器插槽中就可以
完成安装。您可以构建任何类型的控制器，甚至将原先的
CCU
电路替换成自制的
Arduino
方案，获得
一个符合工业标准的摄影机控制单元。
您可以创建自己的硬件控制器，并将其插入
Blackmagic 3G-SDI
Arduino Shield 上获得更为互动且精细的控制。
Communicating with your Arduino Shield
You can communicate with your Arduino Shield via I
2
C or Serial. We recommend I
2
C because of
the low pin count and it frees up the serial monitor. This also allows you to use more I
2
C devices
with the shield.
High Level Overview
The library provides two core objects, BMD_SDITallyControl and BMD_SDICameraControl, which
can be used to interface with the shield
’
s tally and camera control functionalities. Either or both
of these objects can be created in your sketch to issue camera control commands, or read and
write tally data respectively. These objects exist in several variants, one for each of the physical I
2
C
or Serial communication busses the shield supports.
I
2
C Interface
To use the I
2
C interface to the shield:
// NOTE: Must match address set in the setup utility software
const int
shieldAddress = 0x6E;
BMD_SDICameraControl_I2C sdiCameraControl(shieldAddress);
BMD_SDITallyControl_I2C sdiTallyControl(shieldAddress);
Serial Interface
To use the Serial interface to the shield:
BMD_SDICameraControl_Serial sdiCameraControl;
BMD_SDITallyControl_Serial sdiTallyControl;